Time.now "stuck" in Javascript Function

Rails
#1

Novice RoR programmer here, I’ve run into a bit of a stumbling block,
concerning Time.now seemingly not updating in between JS function
calls.

My code is as follows:

function test()
{
document.getElementById(“chatbox”).value += “<%= Time.now %>” + “\n”;
}

…


Basically, clicking the textarea “chatbox” will add a line with the
current time, and unfortunately, every click on the textarea results
in the identical line being written, which is the time that the page
was loaded.

Is there any way I could get Time.now to update with every click?

Thanks in advance!

Nick.

#2

On Nov 8, 3:36 pm, Nick S [email protected] wrote:

Basically, clicking the textarea “chatbox” will add a line with the
current time, and unfortunately, every click on the textarea results
in the identical line being written, which is the time that the page
was loaded.

That’s completely normal - At the point that the template is rendered
all of your <%= are evaluated - if you look at the source in the
browser you won’t see any of your ruby code (and even if you could,
what’s your browser supposed to do with ruby). If you need some ruby
code evaluated you need to make a request to the server

Fred

#3

Ahh I see, thank you very much for your help Frederick!

On Nov 9, 12:57 am, Frederick C. [email protected]

#4

Frederick C. wrote:

On Nov 8, 3:36�pm, Nick S [email protected] wrote:

Basically, clicking the textarea “chatbox” will add a line with the
current time, and unfortunately, every click on the textarea results
in the identical line being written, which is the time that the page
was loaded.

That’s completely normal - At the point that the template is rendered
all of your <%= are evaluated - if you look at the source in the
browser you won’t see any of your ruby code (and even if you could,
what’s your browser supposed to do with ruby). If you need some ruby
code evaluated you need to make a request to the server

But in this case, you probably don’t need a server request – I think
JavaScript has an equivalent to Time.now.

In any case, I would advise against using ERb in JavaScript…

Fred

Best,

Marnen Laibow-Koser
http://www.marnen.org
[email protected]